Renee Lusano went hiking with five friends on the island of Maui in Hawaii. She had her drone camera along to capture the beauty of the island. Little did they know they would be caught in a flash flood! Water from rain higher up on the mountain all converged into this one stream, where they were playing in a waterfall.
From the YouTube description:
None of the shots once the river started flooding were intentionally captured or composed. I only operated the drone to keep it high out of the way as I fled to higher ground. I lost sight of the drone several times because my focus was not piloting the drone, it was simply not crashing it while we climbed to safety.
At the end the drone was flown to alert the helicopter of our location, because we received word from our friend back at the road that the helicopter was unable to find us.
Renee tells the whole story at her blog, including their rescue by helicopter, with plenty of pictures.
-via reddit